4A0-101 Exam Questions

Two IS-IS routers are exchanging Hello packets with different authentication types. Which of the following is TRUE?

Which of the following route types must be manually configured and will not re-route traffic when a link failure occurs in its path?

Why does IPv6 not use ARP?

Click on the exhibit. Router R2 uses OSPF to advertise the network 192.168.3.0/24 to router R1. A route policy has been configured to reject the route on router R1. Why doesn't the...

Which of the following describes the purpose of 6over4 tunneling?

InOSPFv3, which of the following LSA types carries prefixes and is only flooded in the area where it is generated?

Click on the exhibit. Router R2 has a directly connected interface to network 192.168.3.0/24 that is included in IS-IS. If router R4 redistributes the IS-IS route to 192.168.3.0/24...

Click on the exhibit. 192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3. Which of the following is a possible so...

What event causes an OSPF adjacency to change from 'down' to 'two way'?

Which of the following are major features of OSPF? (Choose 2.)

Click on the exhibit. In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following sta...

An Alcatel-Lucent 7750 SR has a port with the MAC address of 00;03:FA:AC:77: AF. The port is bound to an interface. If IPv6 is then enabled on that interface .what will the link- l...

A service provider is deploying a 6over4 tunnel to connect a customer's branch office IPv6 network to the corporate headquarters as shown in the exhibit. Which command is used to c...

Which of the following regarding IS-IS DIS is FALSE?

What are the three databases that are maintained by a link-state protocol?

Click on the exhibit. OSPF router R2 has both point-to-point and broadcast interfaces and it is not a DR for any interfaces. Router R2 detects the link failure between itself and r...

Which of the following best describes distance vector protocols?

The solicited node address for the destination node address of 2001:DB8::30A:216 4DFF:FE14:6CAE is:

Click on the exhibit. What does the field "2001:DB8:111::/64" represent?

An Alcatel-Lucent 7750 SR is configured with an export policy to redistribute a loopback prefix into OSPFv3. What type of LSA advertises the prefix to the other OSPFv3 routers in t...

How is the DR selected when an OSPF router is added to a broadcast network?

Which of the following best describes the features of Classless Inter-Domain Routing (CIDR)?

Which of the following best describes the forwarding of a IPv6 packet that has a destination anycast address?

WhichOSPFv3LSA type is generated by an ABR to advertise prefixes from one area to another?

Which of the following best describes an OSPF Type 3 LSA?

Click on the exhibit. Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3. After the link failu...

Click on the exhibit. Assume that OSPFv3 is properly configured on all routers and that router R4 advertises its system prefix into Area 0. Which of the following best describes ho...

Which of the following is a characteristic of OSPFv2 that was NOT preserved in OSPFv3?

On which type of IS-IS router is summarization most likely to be configured?

Which part of the NSAP address is used to indicate to the end system that a packet is to be processed by the router itself?

When multiple routing protocols offer a route for the same prefix, what part of the router is in charge of deciding which route to make active?

Which of the following is FALSE regarding link-state protocols?

Click on the exhibit. The numbers beside the links are the metrics for that link. Given the diagram, what path will traffic follow from router R1 to router R7,and from router R7 to...

Which LSAtype is not found in point-to-point only OSPF networks?

Click on the exhibit. The route table on router R2 shows the system address of router R5 but it does not show any of the interfaces from the non-OSPFarea. What may be causing this?

Click on the exhibit. Based on the topology shown and the route tables of routers R3 and R4,which of the following is correct?

Click on the exhibit. In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. There are no stub or NSSA areas. Which of the following regarding LS...

WhichOSPFv3LSA advertises an ASBR?

A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower...

Click on the exhibit. What value would be expected in the state field?

Click on the exhibit. A static route has been configured on router R1 to reach the PC at 139.120.121.2. What might be causing the ping to fail?

A static route needs to be configured with a next-hop that is NOT directly connected to the router. Which of the following must be TRUE?

Click on the exhibit. Router R1 distributes its globally routed address and its loopbacks into IS-IS. Routers R2 and R4 have their globally routed addresses in IS-IS. How many rout...

Click on the exhibit. Router R2 uses IS-IS to advertise the network 192.168.3.0/24 to R1. How can router R1 discard the route?

Click on the exhibit. All ports in the network are operationally up and have a speed of 1Gbps. Which of the following is TRUE?

Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

Click on the exhibit. What is the correct command to configure a default route on the Alcatel- Lucent 7750SR R2?

Which of the following regarding the IS-IS CSNP is FALSE?

Which is the OSPF v3 equivalent to the OSPFv2 Type 7 LSA?

Click on the exhibit. Given the contents of the Router LSA, which of the following best describes the local topology of the router?